Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: sched/smt: Fixed the imbalance in schedsmtpresent. I received the following warning during the stress test: jump label: negative count! WARNING: CPU: 3, PID: 38, at kernel/jumplabel.c:263, statickeyslowtrydec+0x9d/0xb0 Call trace...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mm: hugememory: use !CONFIG64BIT to relax huge page alignment on 32-bit machines. Yves-Alexis Perez reported a commit named 4ef9ad19e176 “mm: hugememory: don’t force huge page alignment on 32-bit machines” that did not work for...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: cifs: potential buffer overflow in handling symlinks Smatch printed a warning: arch/x86/crypto/poly1305glue.c:198 poly1305updatearch error: memcpy 'dctx-buf' too small 16 vs u32max This issue arises because Smatch marks ‘linklen’...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: serial: protect uartportdtrrts in uartshutdown as well. The commit af224ca2df29 serial: core: Prevent unsafe uart port access, part 3 added several uport == NULL checks. One such check was added to uartshutdown. Therefore, the...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Backlight: led-bl: Added devlink to the supplier LEDs The LED Backlight is a consumer of one or multiple LED class devices. However, devlink currently cannot create the correct supplier-producer links when the supplier is a LED...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: gpu: host1x: Fixed a memory leak in 'host1xremove'. A missing call to 'host1xchannellistfree' was added in the remove function, just as already done in the error handling path of the probe function...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: media: cx23885 – Fixed a nullptrderef bug in bufferprepare and bufferfinish. When the driver calls cx23885riscbuffer to prepare the buffer, the function call dmaalloccoherent may fail, resulting in an empty buffer risc-cpu. Later...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: - clk: tegra: Fixed a refcount leak in tegra210clockinit. - offindmatchingnode returns a node pointer with a refcount incremented. We should use ofnodeput on it when there is no longer a need for it. - Added ofnodeput to avoid...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: mtd: partitions: The refcount leak in parseredbootof has been fixed. ofgetchildbyname now returns a node pointer with a refcount incremented. We should use ofnodeput on it when there is no longer a need for it. Add the missing...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: ksmbd: fixed a race condition issue under cocurrent smb2 tree disconnect. There is also a UAF issue under cocurrent smb2 tree disconnect. This patch introduces TREECONNEXPIRE flags for tcon to avoid cocurrent access...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: mac802154: A check for local interfaces should be performed before deleting the sdata list. Syzkaller reported a corrupted list in ieee802154ifremove. 1 A IEEE 802.15.4 network interface must be removed after unregistering a IEEE...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Net: Fix for crashes when configuring gsomaxsize/gsoipv4maxsize. Configuring gsomaxsize/gsoipv4maxsize can lead to an underflow in skdstgsomaxsize, which may trigger a BUGON crash, because sk-skgsomaxsize would be much larger tha...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: clamping the maximum hashtable size to INTMAX The maximum size of the conntrack hashtable should be set to INTMAX. Otherwise, it is possible to encounter a WARNONONCE error in kvmallocnodenoprof when resizin...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: geneve: Fixed a use-after-free in genevefinddev. syzkaller reported a use-after-free in genevefinddev 0 without repro. geneveconfigure links the struct genevedev.next to netgenericnet, genevenetid-genevelist. The net here may...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: sfc: Fixed the null pointer dereference in efxhardstartxmit. Trying to access the channel through the txqueue variable is incorrect because we can only be in this situation if txqueue is NULL. Therefore, we should not dereference...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: nfs: fixed UAF in direct writes In production, we have been encountering the following warnings consistently: ------------ cut here ------------ refcountt: underflow; use-after-free. WARNING: CPU: 17 PID: 1800359 at...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: brcmfmac: An error occurs when retrieving an invalid maxflowrings value from a dongle. When the firmware encounters a trap during initialization, the host reads an abnormal maxflowrings value from the dongle. This can lead to a...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Block: A check was added to ensure that the partition size must be aligned with the block size. Before calling the add partition or resize partition functions, there was no check to verify whether the partition size was aligned...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: mm: slub: Fix the invocation of flushcpuslab and freeslab in the task context. The commit 5a836bf6b09f “mm: slub: move the invocation of flushcpuslab and freeslab out of the IRQ context” fixes this issue by moving all invocations...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: drm/tegra: Added a call to putpid. Added a call to putpid corresponding to gettaskpid. host1xmemorycontextalloc does not take ownership of the PID, so we need to free it here to avoid leaks. [email protected]: reword commit...